cosmopolitan/libc/log/backtrace.internal.h
Justine Tunney 555260d2e5 Optimize memory layout
Compared to b69f3d2488, old windows specific fd, zipos and nsync memory ranges in libc/runtime/memtrack.internal.h were kept.
2023-03-20 21:07:01 -04:00

24 lines
935 B
C

#ifndef COSMOPOLITAN_LIBC_LOG_BACKTRACE_H_
#define COSMOPOLITAN_LIBC_LOG_BACKTRACE_H_
#include "libc/nexgen32e/stackframe.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/runtime/symbols.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
forceinline pureconst bool IsValidStackFramePointer(struct StackFrame *x) {
/* assumes __mmi_lock() is held */
return IsLegalPointer(x) && !((uintptr_t)x & 15) &&
(IsStaticStackFrame((uintptr_t)x >> 16) ||
IsOldStackFrame((uintptr_t)x >> 16) ||
/* lua coroutines need this */
IsMemtracked((uintptr_t)x >> 16, (uintptr_t)x >> 16));
}
void ShowBacktrace(int, const struct StackFrame *);
int PrintBacktraceUsingSymbols(int, const struct StackFrame *,
struct SymbolTable *);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_LOG_BACKTRACE_H_ */